Description
Product Overview
The ZLSCTT Oil Pump Primer Tool is a precision‑engineered accessory designed to prime the oil pump on small and big block Chevrolet V8 and V6 engines. Crafted from high‑quality aluminum alloy, the body offers lightweight durability while the black‑oxide coated steel shaft provides exceptional resistance to wear and corrosion. Rated at 170,000 psi, the primer shaft ensures consistent oil flow during engine rebuilds or maintenance. Dimensions are compact at 3.15 x 1.97 x 1.18 inches and it weighs only 7 ounces, making it easy to handle and store. The tool fits engine blocks ranging from 327 ci to 454 ci, covering popular sizes such as 327, 350, 355, 383, 388, 400, 406, 427, 434, and 454.
Usage
Designed for professional mechanics and dedicated DIY enthusiasts, this primer tool integrates seamlessly with a standard 1/2‑inch or 3/8‑inch chuck hand drill. Whether you are performing a complete engine rebuild, conducting a routine oil pump inspection, or need to prime the pump after a repair, the ZLSCTT tool delivers reliable performance. Its compact size allows use in tight engine bays, and the ergonomic design reduces hand fatigue during extended priming sessions. 
Why Choose Us
ZLSCTT stands for precision and durability in automotive tools. This primer tool benefits from a rigorous manufacturing process that includes CNC machining of the aluminum body and a proprietary black‑oxide coating on the steel shaft, extending service life and resisting rust. Each unit undergoes a 100% functional test to verify pressure rating and fitment before shipping. Backed by a one‑year quality warranty, customers receive confidence that the tool will perform under demanding conditions without premature wear.
Key Features
- Compatible with SB/BB Chevy V8 & V6 engines, covering 327‑454 ci blocks
- High‑strength aluminum alloy body for lightweight durability
- Black‑oxide coated steel shaft rated at 170,000 psi for extended life
- Fits 1/2‑inch or 3/8‑inch chuck hand drills for versatile use
- One‑year warranty and rigorous quality testing for reliability
FAQ
What engine sizes does this primer tool support?
The tool is compatible with Chevrolet small and big block V8 and V6 engines ranging from 327 ci to 454 ci, including popular sizes such as 350, 383, 400, and 427.
Can I use this tool with a standard cordless drill?
Yes, the primer fits both 1/2‑inch and 3/8‑inch drill chucks, making it suitable for most cordless and corded hand drills.
Is the steel shaft prone to rust?
No, the shaft is treated with a black‑oxide coating that provides excellent corrosion resistance, even in humid workshop environments.
What is the warranty coverage?
The product includes a one‑year warranty covering manufacturing defects and premature wear under normal use conditions.
How do I install the tool on my drill?
Simply insert the tool’s shank into the drill’s chuck, tighten securely, and ensure the drill is set to a low speed for priming to avoid over‑torquing the shaft.








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